A new cobalt-catalysed reductive coupling of aryl halides with benzyl chlorides is reported; a variety of diarylmethanes can be prepared in good to excellent yields under mild reaction conditions using CoBr2 as catalyst and Zn dust; this new cobalt-catalysed coupling represents a practical and interesting alternative to previously known methods for the synthesis diarylmethanes.
报告了一种新的
钴催化芳基卤化物与苄基
氯的还原偶联;使用 CoBr2 作为催化剂和 Zn 粉尘,在温和的反应条件下可以制备出多种二芳基
甲烷,收率从良好到极佳;这种新的
钴催化偶联是以前已知的二芳基
甲烷合成方法的一种实用而有趣的替代方法。